document.write( "Question 164480: Fifty gallons of a 90% alcohol solution is obtained by mixing a 100% solution with a 75% solution. How many gallons of each solution must be used to obtain the desired mixture? \n" ); document.write( "
Algebra.Com's Answer #121193 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! X+.75(5-X)=.9*5 \n" ); document.write( "X+3.75-.75X=4.5 \n" ); document.write( ".25X=4.5-3.75 \n" ); document.write( ".25X=.75 \n" ); document.write( "X=.75/.25 \n" ); document.write( "X=3 GALLONS OD 100% SOLUTION. \n" ); document.write( "PROOF: \n" ); document.write( "3+.75(5-3)=.9*5 \n" ); document.write( "3+.75*2=4.5 \n" ); document.write( "3+1.5=4.5 \n" ); document.write( "4.5=4.5 \n" ); document.write( " |